Engineering Science Letter
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68 research outputs found
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Exploring the Benefits and Challenges of Artificial Intelligence (AI) in Nursing
Full text linkThis paper discusses the trend of AI (Artificial Intelligence) and its role in the healthcare industry. AI is being used to improve efficiency and effectiveness in healthcare. Still, challenges remain, such as privacy and data protection and healthcare workers' hesitancy to replace their work with technology. This study aims to see opportunities for using AI in the health sector and understand existing problems, such as barriers to significant initial investments. This study uses a qualitative approach and focuses on the author's understanding based on secondary sources and personal experience. The study results show that AI can assist health workers in making diagnoses and providing more efficient health services. However, it still has to be used as a tool and cannot replace the role of health workers as a whole
Lobe Software's Accuracy in Analyzing Human Facial Expressions: Accuracy of Using Lobe Software in Analyzing Human Facial Expressions
No full text The face constitutes a research subject for analyzing human facial expressions, as it can provide insights into an individual's emotions. Facial expressions are identified through changes in key facial features such as the eyes, eyebrows, mouth, and forehead. The field of education has witnessed rapid technological advancements, especially in light of the pandemic. Consequently, the need for the development of technology has become increasingly pressing. This study aims to evaluate the accuracy of Lobe software in analyzing human facial expressions. The sample population for this research comprised students from IKIP Muhammadiyah Maumere, Indonesia, with a sample size of 19 selected using a simple random sampling method. The results of the analysis showed that the accuracy of the software was pretty good, with a score of 90% for each category of neutral, sad, happy, and angry faces. The questionnaire data analysis yielded a score of 84%, which is only 6% lower than the score achieved through the students' self-reporting, implying an error rate of less than 10% if validated
Understanding the Use of EduTech in Schools in the Philippines: Recommendations for Effectiveness
Full text linkThis article focuses on the utilization of educational technology in schools in the Philippines. The aim of the study is to provide recommendations for the effective use of EduTech in schools. The article takes a qualitative approach in presenting the author's perspective and opinion, supported by relevant literature. Educational technology is a phenomenon that is transforming the educational system of every school in the Philippines. However, there are several barriers to the effective implementation of EduTech, such as lack of infrastructure, teacher training, funding, digital divide, resistance to change, and technical difficulties. The article emphasizes the need for comprehensive and well-funded efforts to support the implementation and utilization of EduTech in schools in the Philippines. The study concludes that it is essential to educate teachers on the use of EduTech to ensure its effective implementation. Schools must also have adequate budgetary allocation to accommodate the use of technologies in instruction, and the digital divide between schools must be addressed to ensure that everyone has equal access to educational technology. Administrators should take the lead in promoting the use of EduTech in schools and creating an atmosphere that influences everyone to make use of these materials. By doing so, teachers and learners will be better equipped with the skills and knowledge necessary to thrive in the ever-evolving digital world
Electrical Engineering Practicum: The Place of Virtual Laboratory in Nigerian Universities
Full text linkThis study examined the level of awareness, perception, and utilization of virtual laboratories in Nigerian Universities by Electrical Engineering lecturers. The study was guided by three specific objectives and three survey research types. One hundred twenty-one lecturers in electrical engineering from 8 universities in Nigeria's Northeast comprised the study's population. Because the total population size was manageable, the study used whole-population sampling. Data was collected using a validated questionnaire. A reliability index of 0.79 was determined using Cronbach Alpha. Mean, and standard deviation were used to answer the research questions. The findings revealed that all the electrical engineering lecturers in Nigerian Universities are highly aware of Virtual Laboratories, and all the electrical engineering lecturers in Nigerian Universities rarely utilized Virtual Laboratories. The study recommended that the National University Commission should use all of its resources to promote the development of electrical engineering practicum by providing virtual laboratories to all universities in Nigeria, as the study found that electrical engineering lecturers in Nigerian universities have a high level of awareness of virtual laboratories; in addition to supporting physical laboratories in the universities, the administration should provide for the training of laboratory technicians and electrical engineering lecturers in Nigerian universities on how to effectively use the virtual laboratory facilities for conducting various types of experiments
Study of Complexation Behaviour of Lignite Extracted Humic Acid with Some Divalent Cations
Full text linkIn biogeochemical cycles, humic substances are natural electron shuttles in transforming nutrients and environmental pollutants. Humic acid complexes with macro and micronutrient metals are eco-friendly organo-mineral fertilisers. This study prepared and characterised lignite-extracted humic acid-metal (Fe, Mg, Zn) complexes. The proximate analysis exhibited the moisture, volatile matter, ash and fixed carbon contents of extracted humic acid of 02.61%, 17.31%, 57.18% and 22.90%, respectively. The percentage of metal ions in humic acid complexes ranges from 3.5-7.25%. The FTIR analysis of coal-extracted humic acids-metal complexes showed Zn, Mg and Fe ions complexed in a bidentate manner predominantly with the carboxylic acid moiety of humic acid. Thermal gravimetric analysis indicated a higher value of humic acid decomposition than their metal complexes. The thermal stability observed order is HA- Zn >HA-Fe>HA- Mg. The X-ray diffraction pattern pointed toward the noncrystalline nature of humic acid and their respective complexes due to having few intense and small diffuse peaks in the 2θ range from 0 to 80°. Hence, the humic acid-metals complexes increase the soil humic content and the availability of essential nutrients that enhance the loam's biotic action
Revolutionizing Healthcare with 3D/4D Printing and Smart Materials
Full text link3D printing technology has revolutionized the way products are manufactured, and it has opened up new possibilities in the field of smart materials. Smart materials are materials that can change their properties in response to external stimuli, such as temperature, pressure, or light. By combining 3D printing technology with smart materials, highly customizable and responsive products are created. The addition of the time dimension to 3D printing has introduced 4D printing technology, which has gained considerable attention in different fields such as medical, art, and engineering. To bridge the gap in knowledge of 4D, this paper assessed the revolution in healthcare with 3D/4D printing and smart materials. Data was generated as part of a broader empirical study which sought to explore healthcare personnel and electrical engineers’ perception on the practices around the use of 3D/4D printing technology and smart materials. The main method used was structured interviews. 12 participant were purposively selected and interviewed including healthcare personnel and electrical engineers form Philippines and Nigeria. The findings reveal an array of activities undertaken using both 3D and 4D. Furthermore, the study revealed that 4D printing is a new generation of 3D printing. Another aspect of the 3D usage is the integration of electrical stimulation and smart implant as a new area of study in healthcare. 3D could also be used to monitoring the smart implant performance. The study also evaluate the possibility of using Internet of things (IoT) in the smart implant as some device embeds smart materials. Smart implant commonly used includes orthopedic applications, such as knee and hip replacement, spine fusion, and fracture fixation. The smart materials used in this technology are important because 3D printing allows printed structures to be dynamic. The paper highpoints is that 4D printing has great potential for the future
Security on Charity Crowdfunding Services using KAMI Index 4.1
Full text linkTechnological developments are multiplying. The ABC charity currently has a crowdfunding service. This service helps simplify the user management process. Security is a crucial issue to support and guarantee funders. This research aims to evaluate and provide recommendations for crowdfunding services to run safely and smoothly using the KAMI Index 4.1. This research consists of several steps, starting with observations made at charitable institutions. The following process is through focus group discussion activities to assess the level of information security of crowdfunding services. The analysis of the calculation results is used as the basis for developing recommendations. Based on the assessment results, crowdfunding services at charities obtained scores of I to I+, this indicates that the charity is still in its initial condition and has not yet implemented information security standards in managing crowdfunding services. Recommendations proposed to increase the value are carried out by compiling and implementing information security at the charity
Measuring the Application Readiness Level of AKKU Online Mobile Attendance System using HOT-fit Method
Full text linkThe application of attendance in an institution is necessary to determine the attendance of employees and all staff. The AKKU Mobile online attendance application is an application intended for teachers. However, application users found several problems related to the quality of application services, such as facial scans were not accurate and application errors. The purpose of this study is to determine the level of readiness of the application of the AKKU Mobile application. This measurement uses ARL (Application Readiness Level). The approach used in this research is HOT FIT. Respondents are teachers who use the AKKU Mobile application as many as 173 people. The instrument used was a questionnaire distributed after going through the validity and reliability tests. The results showed that the ARL value on the Human dimension was 73.19%, the organization was 78.37%, and the Technology dimension was 70.58%. The average ARL of human, organization and technology is 74% which is in the pretty good category, or the application execution is successful. However, it is necessary to make modifications and improvements based on the suggestions given so that the ARL value increases, which impacts the quality of the attendance process
Virtual Laboratory for Engineering Education: Review of Virtual Laboratory for Students Learning
Full text linkE-learning is currently a rapidly growing trend which attempts to provide an infrastructural configuration that integrates and encompass learning content, services and tools as a single solution which can generate and deliver educational contents and training effectively, efficiently and cost-effectively. In advanced technical education, laboratories are essential learning spaces. Providing laboratory facilities at universities with limited funds and technical know-how is difficult due to the high expenses of installation and upkeep. In order to tackle these obstacles, "virtual laboratories" have been established. Through remote access, virtual laboratories make it possible for users to conduct experiments similar to genuine systems. Consequently, resources of laboratories can be shared across a wide community of geographically dispersed customers while restricting operational expenses and initial set-up to one single institution. This article reviews the virtual laboratory for engineering education. Three distinct e-learning resource methods are discussed. The intrinsic objectives of animation are also explained. Lastly, the conclusion is provided along with recommendation for future studies
Intelligent Reflecting Surfaces Adaptive Beamsteering and PSK Direct Modulation
Full text linkIntelligent Reflecting Surfaces (IRS), a planar array consisting of a large number of low-cost and low-complexity metal patch elements, is predicted to be among the key technologies in future wireless communications. This is mainly due to its capability to improve wireless energy and spectrum efficiency by reconfiguring the wireless environment in a smart and flexible way. IRS is capable of shifting the phase, amplitude, frequency, or even polarity of the impinging electromagnetic (EM) wave. However, only the phase-shift type of IRS is widely adopted in most scenarios. In this paper, we exploit the property of such IRS to directly modulate an incident EM wave with phase shift keying (PSK) modulation. We consider one transmit antenna that transmits a continuous single-tone electromagnetic (EM) wave, which is then modulated by the IRS and reflected toward the receiver. In addition to the theoretical explanation, we present simulation results with different modulation orders. Moreover, we validated the simulation results by experiment. Furthermore, we also proposed a beam scanning method to obtain IRS patterns to steer the beam towards the desired direction in an adaptive manner. One optimal pattern that maximizes the received power is then selected from the beam scanning codebook. By doing so, a wireless path strength can be significantly improved